12/21/2012 10:09 AM | |
Joined: 10/10/2005 Last visit: 8/29/2024 Posts: 1917 Rating: (136) |
Hello, there are some FAQs in the internet in refer to this regards. Perhaps it could be mainful for you: http://support.automation.siemens.com/WW/view/de/63877868 http://support.automation.siemens.com/WW/view/de/43713352 With best regards |
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1/25/2013 1:19 PM | |
Joined: 8/31/2010 Last visit: 9/22/2024 Posts: 1521 Rating: (227) |
Hello ROLLEX, For just the basic IO communication (as in your case for DI / DO) in PROFIBUS with S7-1200 you do not need additional programming blocks. DeviceStates is used to determine the I/O device operational states of an I/O subsystem. The status type can assume the following. 1: Configuration of device is active or not yet complete. 2: Device defective 3: Device disabled 4: Device exists |
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1/25/2013 3:44 PM | |
Joined: 6/13/2012 Last visit: 10/19/2022 Posts: 161 Rating: (4) |
But what is the right way to detect DO/DI profibus (and local)error's status? I know about OB82, but "multierror" is not fully do for me. p.s. what is the function of i/o system, i/o device. i/o sub.....and so on?
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1/25/2013 4:41 PM | |||||||||||||||||||||||||||||||||
Joined: 8/31/2010 Last visit: 9/22/2024 Posts: 1521 Rating: (227) |
Hello ROLLEX, FYI
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1/25/2013 4:56 PM | |
Joined: 8/31/2010 Last visit: 9/22/2024 Posts: 1521 Rating: (227) |
Hello ROLLEX, 1. What do you mean by detect DI / DO PROFIBUS and local error status?? 2. OB 82 works with the diagnostics-capable modules. and again what exactly do you mean by multierror (does this mean multiple error happening at same instance of time)? |
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1/25/2013 9:22 PM | |
Joined: 7/7/2010 Last visit: 9/20/2024 Posts: 15213 Rating: (2417)
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In the interface of OB82, one of the inputs is a bool named multierror. It means multiple errors exist meaning a smart loop must be done inside OB82 to figure out all the error reasons. I have tried figuring it out, but the documentation was lacking to figure out what to do with the multierror bit. |
science guy |
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1/29/2013 7:54 PM | |||||||||||||||||||||||||||||||||
Joined: 6/13/2012 Last visit: 10/19/2022 Posts: 161 Rating: (4) |
Thanks! There did you find it?
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1/29/2013 8:55 PM | |
Joined: 6/13/2012 Last visit: 10/19/2022 Posts: 161 Rating: (4) |
1. Sorry for my english. I mean diagnostics of errors.But as i know my DI/DQ modules have not such functions. So i hope to detect at least out of supply on them (or ET200) and overflow/underflow on analog inputs . And my first question was how to do this. I have 1 local rack with S71200 and couple of et200, connected with PROFIBUS. And TIA Portal v11 Basic. 2. multierror is the bit, and sets if more than one error is present. in the special "Diagnostic error interrupt". |
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